ғарыш желдетуі

ғарыш желдетуі

Processes that change the physical structure, optical properties, or chemical or mineralogical properties of the surface of an airless planetary body from their original state. These processes include meteorite, micrometeorite, and cosmic dust bombardment, solar wind ion implantation, and sputtering, in deep vacuum and temperatures approaching absolute zero (-273 °C).

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Pramonės šaka / sritis: Astronomy
Category: Planetary science
Company: PSRD
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кома

Astronomy; Planetary science

A large cloud of dust and gas which escapes from the nucleus of an active comet.

ұлпа

Astronomy; Planetary science

Materials loosely packed and not cemented together.

криптомария

Astronomy; Planetary science

Buried mare basalt lavas on the Moon. Many light plains in the lunar highlands have impact craters surrounded by dark piles of ejecta, nicknamed "dark-haloed craters. " The ...

стандартты орта мұхит суы (СОМС)

Astronomy; Planetary science

A precise definition of the isotopic composition of water on Earth. It serves as a reference standard for comparing hydrogen and oxygen isotope ratios. For example, cosmochemists ...

метан

Astronomy; Planetary science

A compound composed of carbon and hydrogen: CH 4 .

ұзақ

Astronomy; Planetary science

In astronomy, a comet with an orbital period greater than 200 years.

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Pramonės šaka / sritis: Fruits & vegetables Category: Root vegetables

шалғам

Annual or biennial plant (Raphanus sativus) of the mustard family, probably of Oriental origin, grown for its large, succulent root. Low in calories ...